Thoughts of what could have happened to her husband make Ms Rose Mahundi sleepless at night. Her husband, Mr Wilbert Mahundi, an elected councillor for Ruhuwiko Ward in Songea Municipality, is among eight Tanzanians detained in Malawi since December 21 last year over trespassing and reconnaissance. Others include, Briton Mateus Mgaya, Wakisa Elias Mwansangu, Majidi…